 
                                                    
E DIN EN IEC 61643-21 VDE 0845-3-1:2025-11
Low voltage surge protective devices
Part 21: Surge protective devices connected to telecommunications and signalling networks # Requirements and testing methods
                                (IEC 37A/414/CDV:2024); German and English version prEN IEC 61643-21:2024
                                Class/Status:
                                Draft,
                                    valid
                                                                    Released: 2025                                        -11   Published:
                                    2025-10                                        -31
                                                                VDE Art. No.: 1800913
                                End of objection deadline:
                                    2025-12-31
                            

